51 



i> 



154 IGtTANlD^. 



dark olive above, the scales edged with lighter ; lower surfaces 

 olive or blackish. Young olive-brown, with transverse blackish 

 markings ; lower surfaces whitish, throat marbled with grey. 



According to Cope, this species occurs in three varieties : — 1. Bright 

 green, paler posteriorly, with two rows of large transverse black 

 bars with irregular edges ; head brownish above, pale-speckled ; 

 lower surfaces olive. 2. Olive-brown above, with faint darker cross 

 bands, pale-bordered behind ; sides and below blue to whitish. 3. 

 Light brown with a row of black spots on each side, divided by a 

 longitudinal pale band ; below yellowish, marbled with bluish. 



Total length 175 millim. 



Head 22 „ 



Width of head 20 



Body 73 



Fore limb 30 



Hind limb 51 ,, 



Tail (reproduced) 80 „ 



Andes of Peru. 

 a-e. (S & yg., not good state. Guascona. J. B. Pentlaud, Esq. [P.]. 



18. Liolsemus signifer. 



Leiolfemus siguifer, Gray, Cat. p. 214. 

 Proctotretus signifer, Dum. i^- Bihr. iv. p. 2SS, pi. xxxix. fig. 2 : Bell, 



Zool. Beagle, Rept. p. 8, pi. iv. fig. 1 ; Guichen. in Gay^ Hist. Chile, 



Kept. p. 40. 

 Ptychodeira signifera, Fitzing. Syst. Rept. p. 73. 

 Eulfenius siguifer, Girard, Proc. Ac. FJiilad. 1857, p. 198, and U.S. 



Explor. Exped., Herp. p. 366. 



Nostril later o-superior. Upper head-scales small, smooth ; no 

 frontal ; interparietal smaller than parietals ; six transverse supra- 

 oculars ; a single (or double) series of scales between the labials and 

 the infraocular ; temporal scales smooth ; anterior border of ear with 

 two slightly projecting small scales. Sides of neck granular, strongly 

 folded. Dorsal scales very small, hexagonal, scarcely imbricate, feebly 

 and tubercularly keeled ; lateral scales smaller still ; ventrals much 

 larger than dorsals, rounded, smooth ; seventy-eight scales round the 

 middle of the body. The adpressed hind limb reaches between the 

 shoiilder and the ear ; hinder side of thighs uniformly granular. 

 Male with four anal pores. Tail a little longer than head and body ; 

 caudal scales much larger than dorsals. Grey above, with small 

 black undulate transverse markings arranged in four longitudinal 

 series ; lower surfaces whitish, speckled with grey. 



Total length 107 millim. 



Head 12 „ 



Width of head 10 „ 



Body 33 „ 



